We are in no position to fight the Chinese, let alone the Chinese and the Russians. The west is economically imploding. The progressives have decimated our military. Europe is a basket case overrun by Islamic radicals. And the Germans get half their energy from the Russians. You do not go to war from a position of weakness, if it can be avoided.
There is a reason why the EU Kleptocrats and US Oligarchs are using Islamic Terrorists, the Muslim Brotherhood and now Nazi thugs to do their bidding. And there is a reason why those tactics are causing major problems.
I don’t see how letting the Russians invade a sovereign country without consequences will strengthen our position in the future. There a number of things we can do short of war. We just don’t have the will to do them. Our biggest problem is the Obama administration. We will always be weak with that crowd running things.